Method and mobile station for determining a code phase
First Claim
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1. In a wireless communication system, a method for determining a code phase, the method comprising:
- generating a first auto correlation function (ACF) within the mobile station, the first ACF being associated with correlation samples over a range of code phases corresponding to a line-of-sight signal;
generating a second ACF within the mobile station based on measured correlation samples over a range of code phases;
comparing the first ACF to the second ACF to generate a code phase offset and a weight factor; and
applying the weight factor to the code phase when combining the code phase with a second code phase from another transmitter.
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Abstract
A method (500) and a mobile station (160) for determining a code phase are described herein. The mobile station (160) may generate a first auto correlation function (ACF) associated with correlation samples over a range of code phases corresponding to a line-of-sight signal. The mobile station (160) may generate a second ACF within the mobile station based on measured correlation samples over a range of code phases. The mobile station (160) may compare the first ACF to the second ACF to generate a code phase offset between the first and second ACFs. The mobile station (160) may adjust the first ACF to match the second ACF.
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Citations
34 Claims
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1. In a wireless communication system, a method for determining a code phase, the method comprising:
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generating a first auto correlation function (ACF) within the mobile station, the first ACF being associated with correlation samples over a range of code phases corresponding to a line-of-sight signal;
generating a second ACF within the mobile station based on measured correlation samples over a range of code phases;
comparing the first ACF to the second ACF to generate a code phase offset and a weight factor; and
applying the weight factor to the code phase when combining the code phase with a second code phase from another transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a wireless communication system, a mobile station for determining a code phase, the mobile station comprising:
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a receiving unit configured to measure correlations over a range of code phases;
a controller operatively coupled to the receiving unit, the controller having a memory and a processor operatively coupled to the memory, the controller being programmed to generate a first auto correlation function (ACF) within the mobile station, the first ACF being associated with correlations over a range of code phases corresponding to a line-of-sight signal;
the controller being programmed to generate a second ACF within the mobile station based on measured correlation samples over a range of code phases;
the controller being programmed to compare the first ACF to the second ACF to generate a code phase offset and a weight factor; and
the controller being programmed to apply the weight factor to the code phase when combining with a second code phase from another transmitter. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. In a wireless communication system, wherein a processor operates in accordance with a computer program embodied on a computer-readable medium for determining a code phase, the computer program comprising:
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a first routine that directs the processor to generate a first auto correlation function (ACF) within the mobile station, the first ACF being associated with correlation samples over a range of code phases corresponding to a line-of-sight signal;
a second routine that directs the processor to generate a second ACF within the mobile station based on measured correlation samples over a range of code phases;
a third routine that directs the processor to compare the first ACF to the second ACF to generate a code phase offset and a weight factor; and
a fourth routine that directs the processor to apply the weight factor to the code phase when combining with a second code phase from another transmitter. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. In a wireless communication system, a device for determining a code phase, the device comprising:
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a means for generating a first auto correlation function (ACF) within the mobile station, the first ACF being associated with correlation samples over a range of code phases corresponding to a line-of-sight signal;
a means for generating a second ACF within the mobile station based on a plurality of measured correlation samples over a range of code phases;
a means for comparing the first ACF to the second ACF to generate a code phase offset between the first and second ACFs, the code phase offset having at least one code phase adjustment and a weight factor; and
a means for applying the weight factor to the code phase when combining with a second code phase from another transmitter. - View Dependent Claims (30, 31, 32, 33, 34)
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Specification